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y 5, 1955 E. J. NEWCOMER FLOOR WAXING AND POLISHING MACHINE 2 Sheets-Sheet 1 Filed Nov. 27, 1950 INVENTOR. fQ/VEJ 7 J A/t'wc' 04456 July 5, 1955 E. J. NEWCOMER 2,712,142

FLOOR WAXING AND POLISHING MACHINE Filed Nov. 27, 1950 2 Sheets-Sheet 2 3 "a M i I I! I 3 Q T 1 J iln c: F am I v 2 I k C k C A INVENTOR.

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United States Pat t O F 2,712,142- rroon WAXING AND POLISHING MACHINE Ernest J. Newcomer, York, Pa. Application November 27, 1951 Serial. No. 197,727 1 Claim. c1.'1s so.

My invention relates to an improvement in a floor waxing and polishing machine. This application is a continuation in part of my application Serial No. 614,966 filed September 7, 1945, and now abandoned.

My invention is adapted for use in conjunction with a waxing and polishing machine of the character that is generally provided with three brushes (see my Patent No. 1,768,137, June 24, 1930) positioned to bear on the floor surface which is to be polished. These machines generally are provided with changeable brushes, one set adapted to be used while wax is being distributed, and another set to be used to burnish the wax surface'after the wax has been applied thereto. Also other forms of brushes and/or scraping tools may be attached to the machine when desired.

My invention relates primarily to a mechanism for to rapidly urge a wax can downwardly against the upward urge of the can by compression springs.

A still further object is to provide a cam operated plunger adapted to move a wax can in a direction opposite to the spring-urged direction of the can.

In the drawings: 7

Fig. 1 is a bottom plan view with one brush broken away, the other brushes removed, and showing the forward brush holder at the top;

Fig. 2 is a view in front elevation partly in vertical cross section taken on the irregular section line 22 of Fig. 1;

Fig. 3 is a horizontal cross section on the irregular section line 3-3 of Fig. 2;

Fig. 4 is a vertical cross section on the line 4-4 of Fig. 3; and

Fig. 5 is a partial vertical cross section on the line 5-5 of Fig. 4.

In Fig. 1 I have shown a bottom plan view, partly broken away, disclosing the arrangement of brush holders adapted to position brushes for use with my waxing and polishing machine. This is believed to be suificiently representative of the machine so that one familiar with present day waxing and polishing machines can readily visualize (when considered with Fig. 2) the general appearance of the machine, the same being provided with three brushes which are positioned to bear on a floor surface to be scraped, cleaned, waxed or polished, the brushes being adapted to be rotated by a single electric motor preferably being suspended with its shaft in a vertical position.

A suitable electric motor of suificient horsepower is mounted within a motor case 12 so that its shaft 14 will be in a vertical position in the approximate center of the assembled waxing and polishing machine. Preferably the electric motor 10 is secured to the motor case 12 by suitable bolts 16, or electric motor 10 and the motor case 12 may be cast in one piece. Also secured to the motor case 12 by the bolts 16, a housing and motor support 18 is I 2,712,142 Patented July 5,. 1955 2 secured and is. adapted to extend outwardly and inwardly to substantially cover and encase the three brush holders and brushes and to support the motor respectively.

On two opposite sides of thev housing 18, I provide recesses 20 in which two ends of a yoke 22. may be inserted and held pivotally by suitable pins 24. Extending from the approximate center of the yoke 22, I provide a handle 26 which preferably is hollow to provide suitable space for a conventional electric cord (not shown) tobe suitably connected at one end thereof to the armature brushes of the motor 10, and the other end thereof to a source of supply of electricity.

With the. electric motor properly mounted within the motor case 12, the motor shaft 14 will be in a vertical position in the approximate center of the assembled machine. The motor may be maintained in this, position by the use of a suitable thrust bearing 28 which is mounted securely on the motor support 18 and is secured to the motor shaft 14. The motor shaft is provided with a suitable friction pulley 30 secured to the end thereof and adapted to frictionally engage a rotary brush carrier 32. The brush carrier 32 is provided with a suitable rubber or other frictional band 34 circumferentially surrounding it. The brush carrier 32 is provided with a suitable hollow hub 36 adapted to extend upwardly therefrom and be secured within the inner ring 38 of a ball bearing collar 38-40.

The outer ring 40 of the ball bearing collar 38-40 is properly sweated or otherwise secured within the upstanding fingers 42 which are slidably secured to the holder arm 44, which is suitably secured by rivets, bolts or other means 46 to studs extending inwardly from the housing and motor support 18 at the outer edges thereof. The inner edges of the holder arm 44 are suitably secured around the support extending downwardly from the housing 18 which is adapted to have secured thereto the thrust bearing 28.

The brush carrier 32 is in the form of a hollow ring and is adapted to provide space for a brush 48 having an upwardly extending portion 50. The portion 50 of the brush 48 is provided with suitable lugs 52 which are adapted to be engaged by similar lugs 54 secured on the brush carrier 32.

Within the brush 48, space is provided for the insertion of a wax can 56 which may be held by its peripheral sealing edge on a spring-urged ring 58 to normally hold the wax can 56 upwardly within the brush 48 (tending to move away from the bristles).

At the end of the hollow hub 36 remote from the brush carrier 32, I provide a collar 60 which may be secured to the hub 36 by conventional screw threads. Within the collar 60, I suitably secure a cam 62 having diametrically opposed high lobes. Thus the cam 62 secured to the collar 60 which is screw-threaded to the hub 36, will revolve with the hub and the brush carrier 32 to which the latter is secured.

A plunger 64 is adapted to pass through the cam 62, hollow hub 36 and come into engagement with the cap of the can 56 positioned within the brush 48, which is urged into contact with the plunger 64 by the springpressed ring 58.

Secured transversely to the plunger 64, I provide a pin 66 which is adapted to bear against the cam 62 so that, as the same is rotated, the pin 66 and plunger 64 will be urged downwardly against the spring-urged ring 58. The plunger 64 and its transverse pin 66 are prohibited from rotating with the hub 36 and collar 60 by the laterally extending rod 68 which is adapted to slide up and down within the slot 70 of the upstanding lug 72 which is secured to the holder arm 44.

With this construction, it may be readily seen that the wax can 56 (having suitable discharge holes therein) may be positioned within a brush 48 which is provided with a central opening and which is held by the brush carrier 32 which is adapted to be rotated by a suitable motor 10.

Also means are provided for causing the wax can to be reciprocated so that as it revolves with the brush, it will be caused to move upwardly by the spring-urged ring 58 and downwardly by the cam advanced plunger 64.

Such rapid up and down oscillation of the can 56 will add to the efiect of the centrifugal force under which the wax Within the can is being discharged therefrom. I claim:

' In a waxing machine, a plurality of centrally bearinged brush carriers rotatably supported by a housing in which a motor having a vertical drive shaft is supported, each of said carriers frictionally engaging at least one other carrier and at least one of said carriers frictionally engagwithin centrally disposed void spaces in said brushes, spring means urging said wax cans toward said brush carriers, cams secured to said brush carriers and adapted to rotate therewith, reciprocating plungers extending through the central bearings of said carriers and bearing upon said cans, the reciprocating plungers having transverse pins secured thereto which engage said cams rotated by the carriers, and means for preventing rotation of said plungers, whereby rotation of the said brushes and their cams causes the plungers and Wax cans to reciprocate.

References Cited in the file of this patent UNITED STATES PATENTS 1,915,495 Erikkson-Jons June 27, 1933 1,961,384 Olemann June 5, 1934 1,964,318 Fowler June 26, 1934 FOREIGN PATENTS 431,237 Great Britain July 3, 1935 

